Assigwob to touted



Patented sept; 9, 1919.

APPL'ICATroN 'man mama'. 19u.

ENANK W. Ci-iiazrsrv,` or BEVERLY, ianssncnusnrfrs, AssIeNoE 'ro UNITEDsrioE or NEW JEEsEY.

MACHINERY Conroiterloiv, or rarEnsoN, NEW JERSEY, nconronnrion ieiaaii.

EASTENERQINSERTING MACHINE.

Patented Sept. 9,1919.

Application iiieaneeinber `31, 1917. serarNo. 209,739.

To all fte/wm 'it may concern: i l

Be it known that l, FRANK W. CHRISTY, a citizen of the United States,residingatl'everly, in the county of Essex and State of Massachusetts,have invented certain Iniproveinents in l`aste1ier11sertinglll/lachines, of which the following` description,` inconnection with the accompanying drawings, is a specification, likereference characters on the drawings indicating' like parts in theseveral figures. j This invention relates to fastener inserting machinesand more particularly to the operating niechan-isnrthereof` For thesakeof illust-nation, the l invention Ais u here "shown r as applied tb thepunchllever.` of an eyelet` ingmachine,` but itwvill become obvious"from a more complete consideration ofl this-example that it is in norespect so limited.

ln one ype of eyeleting" machines,` of which the Perfectioneyeletinginachineis a notable example, the punehlever is `movable l toward andfrom thewvork andis also nio fable laterally. into and out of operating`position. ctuationiof `this lever for moveinent toward andavvayfroin the`Work is ef.- fected. by ineans of an actuating` member comprising a`horizontally supported `bar passing` through a slot inthe punch lever.Because of the varationsinthe angular re-` lations .of these1ne1nbers,ditliculty has been experiencediby reason oftheloindingthereof in said slot. l

@ne object ofthe invention is to improve the construction l of the oper-atine` connection betweenisueh an actuating4 nien'iberand:` anoperating lever in order to secure `freedom of movement Whilemaintaining an unyield` ing' union; i `The features lof theinventionWill becoine apparent from a consideration of the follow:-ingdescription of aspecific illustrated enibodiinent. In thedrawings,--` Figure l is an angular perspective` of a fastenerinserting` machineiiiwvliiclitlie invention has been applied to thepunchlever; Fig. 2 is a sidemeiv ofthis lever and its actuator; l Figs. 3 andIl are front and top "vievvswof this lever in the saine position; and`Fig; `5 is a fragmentary vertical section through the lever and itsactuator taken lengthwise ofithe leve-r and fshoivinh-` the operatingconnecton y The fragment of a machine: shown `in Fig.

l isthe Well known Perfection eyeleting' inachine having` a Work tablel0,a presser foot 12, .an eyelet raceway sets 16 and 18. The top set iscarried upon a lever 20 While the bottoni` set is mounted in a plungeractuated by a cani Locatcdalongside the lever 2O is an'operating lever30 carrying a punch This punch lever S0 is movable laround a horizon-`tal pivot 34 in a supportingfraine 36 which,` in turn, is provided witha journal 38 adapt ed to be associated with ya vertical pivot in theframe of the machine.` Movement of this supporting` frame 3G `around itsvertical pivot is controlled by the usual spaciup; mechanism includingaslotted plate 40.

A die 42is carried in the forward end of cooperation with the punch theframe 36 for 32. Upwardly projectingears f4 on the fra-ine 36 assist inguiding the lever 30 to secure registration of the punch and die and toprevent twisting` of the lever 30.

ln the machine in question, actuation of the punch lever is effected by-ineans of a vertically movable cam operated rod 50 having` a forkedupper end 52 between Whose arms ispivoted a longitudinally `arranpfulbar 541 passing through a slot 4:6 inthe lever 30.` i A pin 55extending' through thebar and through thefork 52 forms thepivotalconnection that enablcsthe bar toturn. Lat*- eral and angular relativedisplacement of the lever and bar `ina `horizontal plane is thereforepossible and the bar `54 may turn uponits horizont-al axis as the lever30 is tilted aro-und its pivot" 34. Turning niovenient of the rod 50 isprevented by later-i ally projecting' arm 511 In the previouslyusedconstruction, thebar 54: bears directly on .the surfaces thatforinthe slot d6. l l With sucha construction, although lateral movementof the lever 3.0 with respect to the actuating bar 54 possible, adii'liculty arises Whenvthe lever is in an extreme position such as isindicated in FieslQ to 4t; The axis 34 of the lever 30 and that of thebar 5l: are then no longer parallel `and when the lever is actuated byvertical n'iovenientof the rod50 and hence ofthebar 54;, the airis ofthe bar 541- and `the `vertical plane ofthe lever` 30 no longer maintainperpendicular or ninety degree relation. This is shownin Fig. 3` and itis so marked that it has been necessary at: times, as a temporally enpedient7 tobevel the sides of the elotltl to la and top and bottonisegments are sliding shoes.y

avoid binding of the connections in eonsequence of oscillating the frame86 about the axis of journal 38.

The improvement constituting the subjectmatter of the present inventionavoids this difficulty and allows freedom of movement while maintaininga rigid connection. The operating connection between the rod 50 and thelever 30 embodies a ball-and-socket structure, the ball element of whichincludes the bar 54C and ball segments 68, 68. The contacting faces ofthe bar and segments are flat and parallel to permit the segments toslide freely on the bar. In this sense the ball The socketsfor the ballsegments are formed in screws 60 and 62 which are fixed in and carriedby the lever 30, being in effect equivalent to integral portions of thelever. Screw 60 is adjustable and is locked by a nut 6st. As shown, itis provided with an oil hole`66, and the ball segments and bar 54 areprovided with oil holes that register therewith. The bar 54, whichconstitutes the middle zone of the ball element, keeps the segmentmembers G8 seated in their sockets while permitting the segment membersto slide thereon as they follow the lever 30. The connection thusafforded is rigid in respect to transmitting the motion of the rod 50 tothe lever 30, but is a zero quantity in respect to all othen motions,and the binding and straining heretofore encountered in machines of thistype are Wholly eliminated.

In the operation of the machine, a hole. is punched in the work by meansof the punch 82 and its cooperating die 42, and for this purpose thepunch lever is moved downwardly by the actuating -rod 5()l whichreceives motion from a cam upon the main shaft of the machine. Thispunch lever is then raised and moved laterally to the right, as viewedin Fig. 1, inrorder'to allow the lever carrying the top set to berotated about its vertical' aXis in order to bring the top set 16 intoalinement with the hole just punched in the work. The top set thenadvances into this hole and moves laterally into alinement with thebottom set 18, feeding1 the work by reasony of its engagement therewith.The bottom set then presents an eyelet to the v work and Yclenches thesame'against the upsetting surface provided uponi they top set. As thelever carrying the upper set moves laterally to feed the work and tobring the top set into alinement with the bottom set, the punch and dieare returned to the position which they previously occupied, and themachine is ready for a repetition of its cycle. It will be noted thatthe operating connectionrbetween the actuating rod 50 and the lever 30is maintainedin all positions and that the operating connections betweenthe lever and the horizontal bar 54 are constructed and arrange-d toAallow these members to assume freely angular relations which aredifferent from a ninety degree relation without causing straining orbinding of the intermediate parts.

It will be understood that the terms hori- Zontal and vertical as usedin the specification and claims are merely for convenience in definingthe relative positions or lo cations of parts and should not, in anyease, be construed as limitations. The invention is broader than theparticular illustrated embodiment and may be applied wherever theproblem occurs.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a fastener-inserting machine, a toollever arranged to executeuniversal angular movement, a reciprocatory actuating element, and meansforming operating connection between said actuating element and saidlever between the ends of the latter, said means being constructed andarranged to transmit all of the motion of said element positively to theleverand to permit freedom of universal angular motion' of the leverrelatively to the actuating element.

2. In a fastener-inserting machine, a toollever arranged to executeuniversal angular movement and having a hole extending transversely, areciprocatory actuating elcment, and means arranged to occupy said holeand forming operating connection between said actuating element and thelever, said means comprising a three-zone ball clement the middle zoneof which is pivotally connected to said actuating element to turn aboutan a-Xis, and the two outer zones of which are free to slide relativelyto the middle zone, said lever having sockets in which said outer zonesare seated and free to rock.

3. In a fastener inserting machine, a toolcarrying lever mounted foruniversal angular movement around a horizontal axis and a vertical axis,an operating bar slidably arranged to rock on a horizontal axis,balland-socket connectors interposed between said bar and said lever torock with and slide relatively to the bar, and means for moving said barverticallyto actuate said lever.

t. In' a fastener-inserting machine, a toollever arranged to executeuniversal angular movement and having a hole extending transversely, areciprocatory actuating ele'- .ment, and means arranged to occupy saidhole and forming operating connection bctween said actuating element andthe lever, said means comprising two cooperative ball segments havingfiat faces confronting but separated from each other, coperatve socketportions carried by the lever and coacting with said ball segmentsrespectively, and a bar carried by said actuating element and arrangedbetween said ball segments to keep the latter seated in their respectivesockets, the segmenten'gaging faces of said bar being flat and parallelto permit free sliding of the segments thereon, and said bar beingpivotally connected to said actuating element to turn about an axisintersecting the bar.

5. In a fastener inserting machine,

an operating lever movable in a vertical plane, a

horizontally disposed vertically movable acmembers being constructed andarranged tol allow variation from a perpendicular relation of the barand lever.

G. In a fastener-inserting machine, a toollever arranged to executeuniversal angular movement and having a hole extending through ittransversely, a three-part ball element including segmental outermembers and an intermediate member, said ball element being arranged insaid hole, said lever having confronting socket portions co-act ingrespectively with said outer members, one of said socket portions beingadjustable to take up loose play between the three parts of the ballelement and between the latter and the lever, lthe contacting surfacesof said three parts being Hat and parallel, said intermediate memberprojecting beyond the lever atboth sides, and movable means pivotallyconnected to said intermediate member tomove the latter bodily andthereby to oscillate the lever.

In testimony whereof I have signed my name to this specification.

' FRANK l/V. CHRISTY.

@epics of this patent may be obtained for ve cents each, by addressingthe Commissioner of Iatents, Washington, D. C.

